# 常见问题

- [如何查询订阅到期时间呢？](https://docs.2sj.ai/chtgpt/faq/subscription.md): 这是大家购买订阅账号非常关心的问题。
- [显示地区不可用该怎么办？](https://docs.2sj.ai/chtgpt/faq/region-not-available.md): 解决 Gemini 登录报错 / 地区不支持问题


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.2sj.ai/chtgpt/faq.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.